you didn't do anything wrong. she's only 15, she might just need time to think about things and experience life a bit more, ya know? you both are SO young and i know it's hard to let someone that you really love and cherish go and spread their wings but sometimes you have to let them go. maybe someday she will come back and if you beg and plead her to come back, she might not be as eager to come back to you after she figures out what she really wants. just try to hang in there.......go hang out with your friends and have a good time, enjoy life while you're young, smile and try to have fun when you go out, talk to girls. it might be a nice change..........for a change;)